1. Have cash, & different currencies in your wallet. I
trust you are changing flights in Japan; so try to have minimum
1,000 Yen & another S$30/- ready. they are for when you
are hungry or thirsty during the stopover.
2. Have medications clearly available in your carry on
backpack,
2A) and a muscle relaxant for you to sleep thru the
2nd lag of your flight so your body can adjust to the time
difference in USA quickly. Sleep as much as you can.
2B) Stuff a small water bottle in that side pocket of the
backpack so you can use it to take drinking water at airports &
parks. A lightweight torchlight in there is also good.
2C) have at least 1 big roll of blanket/towel at
easy reach of your backpack so they can be used to support your
back when you sleep or can use to prop your head during the
flight.
2D) have also at least one set of your colthing
rolled into your backpack; in case the luggage was lost.
2E) Have a change of underwear there with small
bottles of talcum powder, face wash, face towels, comb &
wet wipes.
3) In a luggage, try to get one that is about 30 inch big and
with about it about half empty for stuffs you might buy and bring
back to sg. The army market kit bag is also good.
3A) You need about 4 set of clothings, One you are
already wearing with socks and preferably crocs (fake also can so
you wont need to bring it home). a pair of sports shoes & a
pair of open toe slippers for wearing with socks into the
toliet/bath. Forget about belts if possible.